CST (Cloud Security Chain) is a decentralized currency based on the intelligent protocol issued by Ethereum. CST builds an open, equal and secure smart medical chain platform, creates a portable platform to combine blockchain and AI artificial Big data, optimizes and solves the pain points of traditional medicine and traditional charity. Traditional medical information and charity information are opaque, and AI smart Big data and blockchain are combined. Achieve global information openness, transparency and sharing, and let patients get the best and fastest treatment through AI Big data intelligent artificial system. Ensure that every charitable aid payment is made public, transparent, and traceable in the fastest possible form without cumbersome procedures, and can be distributed to every person in need of assistance.Everyone contributes materials and resources to CST when using the platform, and receives the expected benefits. At the same time, the app developed by CST has the function of purchasing materials. Donors can purchase corresponding materials within the app through CST and automatically connect with the blockchain trading center, enabling the purchased materials to be automatically traded and transported to users in need through the blockchain public information system. This will avoid arbitrary buying and selling of materials and other dishonest behavior. CST holds charity events of varying sizes from time to time, with the most eye-catching being charity sales, which attract renowned entrepreneurs and tycoons from various industries to assist and sell precious items....